Hi,
Trying to get BTF to beautify some maps in augmented_raw_syscalls.o,
something is not working, these are the steps, maybe writing them down
will help me to find the problem :-)
So in tools/perf/examples/bpf/augmented_raw_syscalls.c I have
the "syscalls" map, where I'll store details about what 'perf trace'
wants augmented_raw_syscalls.o hooked to raw_syscalls:sys_{enter,exit}:
It looks like:
----
struct syscall {
bool enabled;
};
bpf_map(syscalls, ARRAY, int, struct syscall, 512);
----
That 'struct syscall' will grow to have more per-syscall setup details,
like how many bytes to copy from the 'write' syscall 'buf' argument to
show in the strace-like output, etc.
For now its just to tell what syscalls are enabled.
That 'bpf_map' helper is in tools/perf/include/bpf/bpf.h, and its there
to make map definitions more compact, and to provide a point where we
can, transparently, add the annotations needed for the libbpf BTF
annotations, i.e. it expands to:
---------------------
#define bpf_map(name, _type, type_key, type_val, _max_entries) \
struct bpf_map SEC("maps") name = { \
.type = BPF_MAP_TYPE_##_type, \
.key_size = sizeof(type_key), \
.value_size = sizeof(type_val), \
.max_entries = _max_entries, \
}; \
struct ____btf_map_##name { \
type_key key; \
type_val value; \
}; \
struct ____btf_map_##name __attribute__((section(".maps." #name), used)) \
____btf_map_##name = { }
---------------------
The __btf_map_ I got from tools/testing/selftests/bpf/bpf_helpers.h,
from the BPF_ANNOTATE_KV_PAIR macro that Martin introduced.
So, now when I build a BPF .o file using the above, I get:
# head -3 ~/.perfconfig
[llvm]
dump-obj = true
clang-opt = -g
#
# perf record -e /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.c sleep 0.1
LLVM: dumping /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.023 MB perf.data ]
[root@quaco ~]# clang --version
clang version 7.0.1 (Fedora 7.0.1-1.fc29)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
#
# file /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o
/home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o: ELF 64-bit LSB relocatable, eBPF, version 1 (SYSV), with debug_info, not stripped
#
# readelf -SW /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o
There are 32 section headers, starting at offset 0x2758:
Section Headers:
[Nr] Name Type Address Off Size ES Flg Lk Inf Al
[ 0] NULL 0000000000000000 000000 000000 00 0 0 0
[ 1] .strtab STRTAB 0000000000000000 002582 0001d1 00 0 0 1
[ 2] .text PROGBITS 0000000000000000 000040 000000 00 AX 0 0 4
[ 3] raw_syscalls:sys_enter PROGBITS 0000000000000000 000040 0001d0 00 AX 0 0 8
[ 4] .relraw_syscalls:sys_enter REL 0000000000000000 001c38 000030 10 31 3 8
[ 5] raw_syscalls:sys_exit PROGBITS 0000000000000000 000210 0000c0 00 AX 0 0 8
[ 6] .relraw_syscalls:sys_exit REL 0000000000000000 001c68 000020 10 31 5 8
[ 7] maps PROGBITS 0000000000000000 0002d0 000054 00 WA 0 0 4
[ 8] .maps.__augmented_syscalls__ PROGBITS 0000000000000000 000324 000008 00 WA 0 0 4
[ 9] .maps.syscalls PROGBITS 0000000000000000 00032c 000008 00 WA 0 0 4
[10] .maps.pids_filtered PROGBITS 0000000000000000 000334 000008 00 WA 0 0 4
[11] license PROGBITS 0000000000000000 00033c 000004 00 WA 0 0 1
[12] version PROGBITS 0000000000000000 000340 000004 00 WA 0 0 4
[13] .debug_str PROGBITS 0000000000000000 000344 000320 01 MS 0 0 1
[14] .debug_loc PROGBITS 0000000000000000 000664 0001a0 00 0 0 1
[15] .rel.debug_loc REL 0000000000000000 001c88 0001e0 10 31 14 8
[16] .debug_abbrev PROGBITS 0000000000000000 000804 000167 00 0 0 1
[17] .debug_info PROGBITS 0000000000000000 00096b 0004c4 00 0 0 1
[18] .rel.debug_info REL 0000000000000000 001e68 000650 10 31 17 8
[19] .debug_ranges PROGBITS 0000000000000000 000e2f 000030 00 0 0 1
[20] .rel.debug_ranges REL 0000000000000000 0024b8 000040 10 31 19 8
[21] .debug_macinfo PROGBITS 0000000000000000 000e5f 000001 00 0 0 1
[22] .debug_pubnames PROGBITS 0000000000000000 000e60 00016b 00 0 0 1
[23] .rel.debug_pubnames REL 0000000000000000 0024f8 000010 10 31 22 8
[24] .debug_pubtypes PROGBITS 0000000000000000 000fcb 00016e 00 0 0 1
[25] .rel.debug_pubtypes REL 0000000000000000 002508 000010 10 31 24 8
[26] .debug_frame PROGBITS 0000000000000000 001140 000040 00 0 0 8
[27] .rel.debug_frame REL 0000000000000000 002518 000040 10 31 26 8
[28] .debug_line PROGBITS 0000000000000000 001180 0002a5 00 0 0 1
[29] .rel.debug_line REL 0000000000000000 002558 000020 10 31 28 8
[30] .llvm_addrsig LOOS+0xfff4c03 0000000000000000 002578 00000a 00 E 31 0 1
[31] .symtab SYMTAB 0000000000000000 001428 000810 18 1 76 8
Key to Flags:
W (write), A (alloc), X (execute), M (merge), S (strings), I (info),
L (link order), O (extra OS processing required), G (group), T (TLS),
C (compressed), x (unknown), o (OS specific), E (exclude),
p (processor specific)
#
# readelf -sW /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o
Symbol table '.symtab' contains 86 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
1: 0000000000000000 0 NOTYPE LOCAL DEFAULT 13
2: 000000000000002a 0 NOTYPE LOCAL DEFAULT 13
3: 000000000000006f 0 NOTYPE LOCAL DEFAULT 13
4: 0000000000000075 0 NOTYPE LOCAL DEFAULT 13
5: 000000000000008c 0 NOTYPE LOCAL DEFAULT 13
6: 0000000000000091 0 NOTYPE LOCAL DEFAULT 13
7: 000000000000009e 0 NOTYPE LOCAL DEFAULT 13
8: 00000000000000a7 0 NOTYPE LOCAL DEFAULT 13
9: 00000000000000b2 0 NOTYPE LOCAL DEFAULT 13
10: 00000000000000be 0 NOTYPE LOCAL DEFAULT 13
11: 00000000000000c8 0 NOTYPE LOCAL DEFAULT 13
12: 00000000000000d6 0 NOTYPE LOCAL DEFAULT 13
13: 00000000000000e0 0 NOTYPE LOCAL DEFAULT 13
14: 00000000000000e8 0 NOTYPE LOCAL DEFAULT 13
15: 000000000000010b 0 NOTYPE LOCAL DEFAULT 13
16: 000000000000010f 0 NOTYPE LOCAL DEFAULT 13
17: 0000000000000113 0 NOTYPE LOCAL DEFAULT 13
18: 0000000000000119 0 NOTYPE LOCAL DEFAULT 13
19: 000000000000011f 0 NOTYPE LOCAL DEFAULT 13
20: 0000000000000123 0 NOTYPE LOCAL DEFAULT 13
21: 000000000000012c 0 NOTYPE LOCAL DEFAULT 13
22: 0000000000000141 0 NOTYPE LOCAL DEFAULT 13
23: 0000000000000149 0 NOTYPE LOCAL DEFAULT 13
24: 000000000000014f 0 NOTYPE LOCAL DEFAULT 13
25: 0000000000000154 0 NOTYPE LOCAL DEFAULT 13
26: 000000000000015c 0 NOTYPE LOCAL DEFAULT 13
27: 000000000000016a 0 NOTYPE LOCAL DEFAULT 13
28: 0000000000000184 0 NOTYPE LOCAL DEFAULT 13
29: 0000000000000193 0 NOTYPE LOCAL DEFAULT 13
30: 0000000000000199 0 NOTYPE LOCAL DEFAULT 13
31: 00000000000001a2 0 NOTYPE LOCAL DEFAULT 13
32: 00000000000001a7 0 NOTYPE LOCAL DEFAULT 13
33: 00000000000001bb 0 NOTYPE LOCAL DEFAULT 13
34: 00000000000001c4 0 NOTYPE LOCAL DEFAULT 13
35: 00000000000001dd 0 NOTYPE LOCAL DEFAULT 13
36: 00000000000001e8 0 NOTYPE LOCAL DEFAULT 13
37: 00000000000001fc 0 NOTYPE LOCAL DEFAULT 13
38: 000000000000020b 0 NOTYPE LOCAL DEFAULT 13
39: 000000000000021d 0 NOTYPE LOCAL DEFAULT 13
40: 000000000000022f 0 NOTYPE LOCAL DEFAULT 13
41: 0000000000000236 0 NOTYPE LOCAL DEFAULT 13
42: 0000000000000246 0 NOTYPE LOCAL DEFAULT 13
43: 000000000000024b 0 NOTYPE LOCAL DEFAULT 13
44: 000000000000024f 0 NOTYPE LOCAL DEFAULT 13
45: 0000000000000259 0 NOTYPE LOCAL DEFAULT 13
46: 0000000000000262 0 NOTYPE LOCAL DEFAULT 13
47: 0000000000000267 0 NOTYPE LOCAL DEFAULT 13
48: 0000000000000278 0 NOTYPE LOCAL DEFAULT 13
49: 000000000000028f 0 NOTYPE LOCAL DEFAULT 13
50: 000000000000029a 0 NOTYPE LOCAL DEFAULT 13
51: 00000000000002a3 0 NOTYPE LOCAL DEFAULT 13
52: 00000000000002b6 0 NOTYPE LOCAL DEFAULT 13
53: 00000000000002ba 0 NOTYPE LOCAL DEFAULT 13
54: 00000000000002c7 0 NOTYPE LOCAL DEFAULT 13
55: 00000000000002d6 0 NOTYPE LOCAL DEFAULT 13
56: 00000000000002df 0 NOTYPE LOCAL DEFAULT 13
57: 00000000000002e4 0 NOTYPE LOCAL DEFAULT 13
58: 00000000000002ed 0 NOTYPE LOCAL DEFAULT 13
59: 0000000000000300 0 NOTYPE LOCAL DEFAULT 13
60: 0000000000000304 0 NOTYPE LOCAL DEFAULT 13
61: 0000000000000316 0 NOTYPE LOCAL DEFAULT 13
62: 0000000000000178 0 NOTYPE LOCAL DEFAULT 3 LBB0_11
63: 00000000000001c0 0 NOTYPE LOCAL DEFAULT 3 LBB0_12
64: 00000000000000e0 0 NOTYPE LOCAL DEFAULT 3 LBB0_6
65: 00000000000000f0 0 NOTYPE LOCAL DEFAULT 3 LBB0_7
66: 00000000000000f8 0 NOTYPE LOCAL DEFAULT 3 LBB0_8
67: 00000000000000b0 0 NOTYPE LOCAL DEFAULT 5 LBB1_3
68: 0000000000000000 0 SECTION LOCAL DEFAULT 3
69: 0000000000000000 0 SECTION LOCAL DEFAULT 5
70: 0000000000000000 0 SECTION LOCAL DEFAULT 14
71: 0000000000000000 0 SECTION LOCAL DEFAULT 16
72: 0000000000000000 0 SECTION LOCAL DEFAULT 17
73: 0000000000000000 0 SECTION LOCAL DEFAULT 19
74: 0000000000000000 0 SECTION LOCAL DEFAULT 26
75: 0000000000000000 0 SECTION LOCAL DEFAULT 28
76: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 8 ____btf_map___augmented_syscalls__
77: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 10 ____btf_map_pids_filtered
78: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 9 ____btf_map_syscalls
79: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 7 __augmented_syscalls__
80: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 11 _license
81: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 12 _version
82: 0000000000000038 0 NOTYPE GLOBAL DEFAULT 7 pids_filtered
83: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 3 sys_enter
84: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 5 sys_exit
85: 000000000000001c 0 NOTYPE GLOBAL DEFAULT 7 syscalls
#
So so far it seems the __btf annotation is there, etc, we need now to
have the BTF there, so I'm using pahole for that:
# readelf -SW /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o | grep -i btf
# pahole -J /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o
# readelf -SW /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o | grep -i btf
readelf: /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o: Warning: possibly corrupt ELF header - it has a non-zero program header offset, but no program headers
[32] .BTF PROGBITS 0000000000000000 002835 000664 00 0 0 1
#
And if I use pahole to load that .BTF info:
# pahole -F btf /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o
struct bpf_map {
unsigned int type; /* 0 4 */
unsigned int key_size; /* 4 4 */
unsigned int value_size; /* 8 4 */
unsigned int max_entries; /* 12 4 */
unsigned int map_flags; /* 16 4 */
unsigned int inner_map_idx; /* 20 4 */
unsigned int numa_node; /* 24 4 */
/* size: 28, cachelines: 1, members: 7 */
/* last cacheline: 28 bytes */
};
struct ____btf_map___augmented_syscalls__ {
int key; /* 0 4 */
u32 value; /* 4 4 */
/* size: 8, cachelines: 1, members: 2 */
/* last cacheline: 8 bytes */
};
struct ____btf_map_syscalls {
int key; /* 0 4 */
struct syscall value; /* 4 1 */
/* size: 8, cachelines: 1, members: 2 */
/* padding: 3 */
/* last cacheline: 8 bytes */
};
struct syscall {
bool enabled; /* 0 1 */
/* size: 1, cachelines: 1, members: 1 */
/* last cacheline: 1 bytes */
};
struct ____btf_map_pids_filtered {
pid_t key; /* 0 4 */
bool value; /* 4 1 */
/* size: 8, cachelines: 1, members: 2 */
/* padding: 3 */
/* last cacheline: 8 bytes */
};
struct syscall_enter_args {
long long unsigned int common_tp_fields; /* 0 8 */
long int syscall_nr; /* 8 8 */
long unsigned int args[6]; /* 16 48 */
/* size: 64, cachelines: 1, members: 3 */
};
struct augmented_filename {
unsigned int size; /* 0 4 */
int reserved; /* 4 4 */
char value[256]; /* 8 256 */
/* size: 264, cachelines: 5, members: 3 */
/* last cacheline: 8 bytes */
};
struct syscall_exit_args {
long long unsigned int common_tp_fields; /* 0 8 */
long int syscall_nr; /* 8 8 */
long int ret; /* 16 8 */
/* size: 24, cachelines: 1, members: 3 */
/* last cacheline: 24 bytes */
};
#
So, yes, the BTF there seems ok.
Now lets try to use this with 'perf trace':
[root@quaco ~]# perf trace -e *sleep sleep 1s
nanosleep(0x7ffdacc934c0, NULL) = 0
[root@quaco ~]#
So it is working, setting up that augmented_raw_syscalls.o into the
raw_syscalls:sys_enter, with the "syscalls" map with just the array
slots for "clock_nanosleep" and "nanosleep" to be with ".enabled =
true".
If I do it again with a 100h sleep, so that it stays there and we can
observe the maps using bpftool, we get:
# bpftool version
bpftool v5.0.0-rc3
#
# bpftool prog | tail -6
309: tracepoint name sys_enter tag 819967866022f1e1 gpl
loaded_at 2019-01-25T11:05:41+0100 uid 0
xlated 528B jited 381B memlock 4096B map_ids 200,199,198
310: tracepoint name sys_exit tag c1bd85c092d6e4aa gpl
loaded_at 2019-01-25T11:05:41+0100 uid 0
xlated 256B jited 191B memlock 4096B map_ids 200,199
#
And the maps:
# bpftool map | tail -6
198: perf_event_array name __augmented_sys flags 0x0
key 4B value 4B max_entries 8 memlock 4096B
199: array name syscalls flags 0x0
key 4B value 1B max_entries 512 memlock 8192B
200: hash name pids_filtered flags 0x0
key 4B value 1B max_entries 64 memlock 8192B
#
So, dumping the entries for those entries:
[root@quaco ~]# egrep sleep /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c
[35] = "nanosleep",
[230] = "clock_nanosleep",
[root@quaco ~]#
Looking at just the open and nanosleep:
# bpftool map dump id 199 | grep "value: 01"
key: 23 00 00 00 value: 01
key: e6 00 00 00 value: 01
#
# bpftool map lookup id 199 key 35
Error: key expected 4 bytes got 1
#
# bpftool map lookup id 199 key 35 00 00 00
key: 23 00 00 00 value: 01
# bpftool map lookup id 199 key 230 00 00 00
key: e6 00 00 00 value: 01
#
I thought it was that --pretty option, so I tried:
# bpftool map --pretty lookup id 199 key 230 00 00 00
{
"key": ["0xe6","0x00","0x00","0x00"
],
"value": ["0x01"
]
}
#
Not yet...
# perf ftrace perf trace -e *sleep sleep 1 > /tmp/perf.trace.ftrace.output
nanosleep(0x7ffec0262650, NULL) = 0
#
# grep btf /tmp/perf.trace.ftrace.output
7) 1.818 us | } /* __btf_verifier_log */
7) | __btf_verifier_log() {
7) 3.753 us | } /* btf_verifier_log_member */
7) 0.125 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | __btf_verifier_log() {
7) 0.136 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | __btf_verifier_log() {
7) 0.139 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | __btf_verifier_log() {
7) + 34.984 us | } /* btf_struct_check_meta */
#
so there was some btf processing, I got a lot of:
CPU:7 [LOST 1130 EVENTS]
So probably a lot more happened, filtering a bit more:
[root@quaco ~]# perf ftrace -G '*btf*' perf trace -e *sleep sleep 1 > /tmp/perf.trace.ftrace.output
nanosleep(0x7ffc7f8927f0, NULL) = 0
[root@quaco ~]#
[root@quaco ~]# grep btf /tmp/perf.trace.ftrace.output | wc -l
260
[root@quaco ~]#
The full contents, filtering out ftrace output for interrupts:
7) | bpf_btf_load() {
7) | capable() {
7) | ns_capable_common() {
7) | security_capable() {
7) 0.105 us | cap_capable();
7) | selinux_capable() {
7) 0.138 us | cred_has_capability();
7) 0.355 us | }
7) 0.969 us | }
7) 1.260 us | }
7) 1.527 us | }
7) | btf_new_fd() {
7) | kmem_cache_alloc_trace() {
7) | _cond_resched() {
7) 0.098 us | rcu_all_qs();
7) 0.294 us | }
7) 0.102 us | should_failslab();
7) 0.172 us | memcg_kmem_put_cache();
7) 1.351 us | }
7) | kmem_cache_alloc_trace() {
7) | _cond_resched() {
7) 0.099 us | rcu_all_qs();
7) 0.300 us | }
7) 0.100 us | should_failslab();
7) 0.313 us | memcg_kmem_put_cache();
7) 1.178 us | }
7) | kvmalloc_node() {
7) | __kmalloc_node() {
7) 0.104 us | kmalloc_slab();
7) | _cond_resched() {
7) 0.102 us | rcu_all_qs();
7) 0.315 us | }
7) 0.100 us | should_failslab();
7) 0.099 us | memcg_kmem_put_cache();
7) 1.150 us | }
7) 1.340 us | }
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.128 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.896 us | }
7) 0.101 us | btf_sec_info_cmp();
7) | btf_struct_check_meta() {
7) 0.135 us | btf_name_valid_identifier.isra.12();
7) 0.109 us | __btf_verifier_log_type();
7) 0.107 us | btf_name_valid_identifier.isra.12();
7) 0.108 us | btf_verifier_log_member();
7) 0.150 us | btf_name_valid_identifier.isra.12();
7) 0.118 us | btf_verifier_log_member();
7) 0.143 us | btf_name_valid_identifier.isra.12();
7) 0.102 us | btf_verifier_log_member();
7) 0.133 us | btf_name_valid_identifier.isra.12();
7) 0.099 us | btf_verifier_log_member();
7) 0.112 us | btf_name_valid_identifier.isra.12();
7) 0.101 us | btf_verifier_log_member();
7) 0.135 us | btf_name_valid_identifier.isra.12();
7) 0.096 us | btf_verifier_log_member();
7) 0.118 us | btf_name_valid_identifier.isra.12();
7) 0.098 us | btf_verifier_log_member();
7) 3.642 us | }
7) | kvmalloc_node() {
7) | __kmalloc_node() {
7) 0.112 us | kmalloc_slab();
7) | _cond_resched() {
7) 0.100 us | rcu_all_qs();
7) 0.296 us | }
7) 0.099 us | should_failslab();
7) 0.102 us | memcg_kmem_put_cache();
7) 1.145 us | }
7) 1.553 us | }
7) | kvfree() {
7) 0.108 us | kfree();
7) 0.304 us | }
7) | btf_int_check_meta() {
7) 0.100 us | __btf_verifier_log_type();
7) 0.315 us | }
7) | btf_struct_check_meta() {
7) 0.244 us | btf_name_valid_identifier.isra.12();
7) 0.102 us | __btf_verifier_log_type();
7) 0.110 us | btf_name_valid_identifier.isra.12();
7) 0.103 us | btf_verifier_log_member();
7) 0.129 us | btf_name_valid_identifier.isra.12();
7) 0.099 us | btf_verifier_log_member();
7) 1.498 us | }
7) | btf_int_check_meta() {
7) 0.101 us | __btf_verifier_log_type();
7) 0.296 us | }
7) | btf_ref_type_check_meta() {
7) 0.107 us | btf_name_valid_identifier.isra.12();
7) 0.099 us | __btf_verifier_log_type();
7) 0.512 us | }
7) | btf_ref_type_check_meta() {
7) 0.112 us | btf_name_valid_identifier.isra.12();
7) 0.101 us | __btf_verifier_log_type();
7) 0.526 us | }
7) | btf_struct_check_meta() {
7) 0.136 us | btf_name_valid_identifier.isra.12();
7) 0.097 us | __btf_verifier_log_type();
7) 0.108 us | btf_name_valid_identifier.isra.12();
7) 0.101 us | btf_verifier_log_member();
7) 0.104 us | btf_name_valid_identifier.isra.12();
7) 0.102 us | btf_verifier_log_member();
7) 1.355 us | }
7) | btf_struct_check_meta() {
7) 0.135 us | btf_name_valid_identifier.isra.12();
7) 0.101 us | __btf_verifier_log_type();
7) 0.115 us | btf_name_valid_identifier.isra.12();
7) 0.104 us | btf_verifier_log_member();
7) 0.960 us | }
7) | btf_ref_type_check_meta() {
7) 0.107 us | btf_name_valid_identifier.isra.12();
7) 0.101 us | __btf_verifier_log_type();
7) 0.516 us | }
7) | btf_int_check_meta() {
7) 0.102 us | __btf_verifier_log_type();
7) 0.311 us | }
7) | btf_struct_check_meta() {
7) 0.153 us | btf_name_valid_identifier.isra.12();
7) 0.103 us | __btf_verifier_log_type();
7) 0.107 us | btf_name_valid_identifier.isra.12();
7) 0.110 us | btf_verifier_log_member();
7) 0.108 us | btf_name_valid_identifier.isra.12();
7) 0.102 us | btf_verifier_log_member();
7) 1.380 us | }
7) | btf_ref_type_check_meta() {
7) 0.118 us | btf_name_valid_identifier.isra.12();
7) 0.101 us | __btf_verifier_log_type();
7) 0.514 us | }
7) | btf_ref_type_check_meta() {
7) 0.156 us | btf_name_valid_identifier.isra.12();
7) 0.103 us | __btf_verifier_log_type();
7) 0.552 us | }
7) | btf_array_check_meta() {
7) 0.102 us | __btf_verifier_log_type();
7) 0.296 us | }
7) | btf_int_check_meta() {
7) 0.098 us | __btf_verifier_log_type();
7) 0.299 us | }
7) | btf_int_check_meta() {
7) 0.098 us | __btf_verifier_log_type();
7) 0.305 us | }
7) | kvmalloc_node() {
7) | __kmalloc_node() {
7) 0.118 us | kmalloc_slab();
7) | _cond_resched() {
7) 0.104 us | rcu_all_qs();
7) 0.302 us | }
7) 0.101 us | should_failslab();
7) 0.219 us | memcg_kmem_put_cache();
7) 1.421 us | }
7) 1.617 us | }
7) | kvfree() {
7) 0.125 us | kfree();
7) 0.313 us | }
7) | btf_ref_type_check_meta() {
7) 0.104 us | __btf_verifier_log_type();
7) 0.311 us | }
7) 0.109 us | btf_verifier_log();
7) | kvfree() {
7) 0.107 us | kfree();
7) 0.296 us | }
7) 0.212 us | kfree();
7) | btf_free() {
7) | kvfree() {
7) 0.182 us | kfree();
7) 0.366 us | } /* kvfree */
7) | kvfree() {
7) 0.104 us | kfree();
7) 0.291 us | }
7) | kvfree() {
7) 0.100 us | kfree();
7) 0.287 us | }
7) | kvfree() {
7) 0.109 us | kfree();
7) 0.298 us | }
7) 0.106 us | kfree();
7) 1.923 us | }
7) + 29.419 us | }
7) + 49.743 us | }
7) | bpf_btf_load() {
7) | capable() {
7) | ns_capable_common() {
7) | security_capable() {
7) 0.100 us | cap_capable();
7) | selinux_capable() {
7) 0.109 us | cred_has_capability();
7) 0.317 us | }
7) 0.750 us | }
7) 0.955 us | }
7) 1.150 us | }
7) | btf_new_fd() {
7) | kmem_cache_alloc_trace() {
7) | _cond_resched() {
7) 0.098 us | rcu_all_qs();
7) 0.290 us | }
7) 0.097 us | should_failslab();
7) 0.108 us | memcg_kmem_put_cache();
7) 0.934 us | }
7) | kmem_cache_alloc_trace() {
7) | _cond_resched() {
7) 0.101 us | rcu_all_qs();
7) 0.294 us | }
7) 0.099 us | should_failslab();
7) 0.099 us | memcg_kmem_put_cache();
7) 0.914 us | }
7) | kvmalloc_node() {
7) | __kmalloc_node() {
7) 0.110 us | kmalloc_slab();
7) | _cond_resched() {
7) 0.110 us | rcu_all_qs();
7) 0.313 us | }
7) 0.104 us | should_failslab();
7) 0.102 us | memcg_kmem_put_cache();
7) 1.158 us | }
7) 6.526 us | }
7) | __check_object_size() {
7) 0.114 us | check_stack_object();
7) 0.109 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.736 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.193 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.836 us | }
7) 1.569 us | }
7) 1.877 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.212 us | check_stack_object();
7) 0.176 us | __virt_addr_valid();
7) 0.112 us | __check_heap_object();
7) 1.031 us | }
7) 1.380 us | }
7) 1.584 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.101 us | check_stack_object();
7) 0.108 us | __virt_addr_valid();
7) 0.198 us | __check_heap_object();
7) 1.012 us | }
7) 1.347 us | }
7) 1.549 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.104 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.719 us | }
7) 1.082 us | }
7) 1.283 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.107 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.728 us | }
7) 1.056 us | }
7) 1.258 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.243 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.916 us | }
7) 1.276 us | }
7) 1.495 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.104 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.715 us | }
7) 1.268 us | }
7) 1.529 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.723 us | }
7) 1.038 us | }
7) 1.236 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.210 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 0.940 us | }
7) 1.342 us | }
7) 1.638 us | }
7) 0.114 us | btf_sec_info_cmp();
7) | btf_struct_check_meta() {
7) 0.139 us | btf_name_valid_identifier.isra.12();
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.112 us | __check_heap_object();
7) 0.765 us | }
7) 1.704 us | }
7) 1.905 us | }
7) | btf_struct_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.106 us | check_stack_object();
7) 0.105 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.728 us | }
7) 1.249 us | }
7) 1.461 us | } /* btf_verifier_log */
7) 1.652 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.108 us | check_stack_object();
7) 0.105 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 0.909 us | }
7) 1.279 us | }
7) 1.477 us | }
7) 5.584 us | }
7) 0.124 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.121 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 0.741 us | }
7) 1.350 us | }
7) 1.547 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.195 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 0.893 us | }
7) 1.336 us | }
7) 1.537 us | }
7) 3.393 us | }
7) 0.126 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.270 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 1.021 us | }
7) 1.528 us | }
7) 1.718 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.102 us | __virt_addr_valid();
7) 0.128 us | __check_heap_object();
7) 0.726 us | }
7) 1.131 us | }
7) 1.420 us | }
7) 3.471 us | }
7) 0.135 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.123 us | __virt_addr_valid();
7) 0.123 us | __check_heap_object();
7) 0.864 us | }
7) 1.393 us | }
7) 1.681 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.102 us | __virt_addr_valid();
7) 0.107 us | __check_heap_object();
7) 0.720 us | }
7) 0.975 us | }
7) 1.192 us | }
7) 3.354 us | }
7) 0.153 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.106 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.780 us | }
7) 1.302 us | } /* bpf_verifier_vlog */
7) 1.608 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.253 us | check_stack_object();
7) 0.201 us | __virt_addr_valid();
7) 0.137 us | __check_heap_object();
7) 1.191 us | }
7) 1.444 us | }
7) 1.662 us | }
7) 3.567 us | }
7) 0.124 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.106 us | check_stack_object();
7) 0.122 us | __virt_addr_valid();
7) 0.143 us | __check_heap_object();
7) 0.781 us | }
7) 1.307 us | }
7) 1.533 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.105 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 0.729 us | }
7) 1.062 us | }
7) 1.417 us | }
7) 3.249 us | }
7) 0.272 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.107 us | __virt_addr_valid();
7) 0.128 us | __check_heap_object();
7) 0.747 us | }
7) 1.362 us | }
7) 1.779 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.200 us | check_stack_object();
7) 0.112 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 0.823 us | }
7) 1.170 us | }
7) 1.504 us | }
7) 3.771 us | }
7) 0.140 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.099 us | __virt_addr_valid();
7) 0.130 us | __check_heap_object();
7) 0.768 us | }
7) 1.354 us | }
7) 1.691 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.100 us | check_stack_object();
7) 0.102 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.733 us | }
7) 1.154 us | }
7) 1.353 us | }
7) 3.399 us | }
7) + 33.519 us | }
7) | kvmalloc_node() {
7) | __kmalloc_node() {
7) 0.109 us | kmalloc_slab();
7) | _cond_resched() {
7) 0.129 us | rcu_all_qs();
7) 0.427 us | }
7) 0.216 us | should_failslab();
7) 0.100 us | memcg_kmem_put_cache();
7) 1.461 us | }
7) 1.694 us | }
7) | kvfree() {
7) 0.104 us | kfree();
7) 0.295 us | }
7) | btf_int_check_meta() {
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.112 us | __check_heap_object();
7) 0.814 us | }
7) 1.530 us | }
7) 1.723 us | }
7) | btf_int_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.783 us | }
7) 1.719 us | }
7) 1.991 us | }
7) 2.343 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.101 us | check_stack_object();
7) 0.102 us | __virt_addr_valid();
7) 0.231 us | __check_heap_object();
7) 0.970 us | }
7) 1.409 us | }
7) 1.630 us | }
7) 6.140 us | }
7) 6.476 us | }
7) | btf_struct_check_meta() {
7) 0.189 us | btf_name_valid_identifier.isra.12();
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.101 us | check_stack_object();
7) 0.295 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 1.144 us | }
7) 1.673 us | }
7) 2.189 us | }
7) | btf_struct_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.130 us | __virt_addr_valid();
7) 0.229 us | __check_heap_object();
7) 1.106 us | }
7) 1.684 us | }
7) 1.891 us | }
7) 2.084 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.159 us | __virt_addr_valid();
7) 0.111 us | __check_heap_object();
7) 1.046 us | }
7) 1.342 us | }
7) 1.542 us | }
7) 6.222 us | }
7) 0.119 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.101 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.137 us | __check_heap_object();
7) 0.944 us | }
7) 1.407 us | }
7) 1.604 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.100 us | check_stack_object();
7) 0.130 us | __virt_addr_valid();
7) 0.315 us | __check_heap_object();
7) 1.106 us | } /* __check_object_size */
7) 1.354 us | }
7) 1.765 us | }
7) 3.673 us | }
7) 0.122 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.250 us | check_stack_object();
7) 0.102 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.988 us | }
7) 1.441 us | }
7) 1.641 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.135 us | check_stack_object();
7) 0.225 us | __virt_addr_valid();
7) 0.136 us | __check_heap_object();
7) 1.149 us | }
7) 1.402 us | }
7) 1.622 us | }
7) 3.579 us | }
7) + 14.613 us | }
7) | btf_int_check_meta() {
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.132 us | __virt_addr_valid();
7) 0.288 us | __check_heap_object();
7) 1.112 us | }
7) 1.580 us | }
7) 1.781 us | }
7) | btf_int_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.138 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 1.131 us | }
7) 1.712 us | }
7) 1.983 us | }
7) 2.350 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.105 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.911 us | }
7) 1.170 us | }
7) 1.368 us | }
7) 6.101 us | }
7) 6.406 us | }
7) | btf_ref_type_check_meta() {
7) 0.206 us | btf_name_valid_identifier.isra.12();
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.163 us | __check_heap_object();
7) 0.869 us | }
7) 1.361 us | }
7) 1.655 us | }
7) | btf_ref_type_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.101 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.744 us | }
7) 1.180 us | }
7) 1.501 us | }
7) 1.691 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.148 us | check_stack_object();
7) 0.337 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 1.138 us | }
7) 1.389 us | }
7) 1.605 us | }
7) 5.530 us | }
7) 6.215 us | }
7) | btf_ref_type_check_meta() {
7) 0.104 us | btf_name_valid_identifier.isra.12();
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 0.861 us | }
7) 1.413 us | }
7) 1.611 us | }
7) | btf_ref_type_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.128 us | check_stack_object();
7) 0.102 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.846 us | }
7) 1.172 us | }
7) 1.409 us | }
7) 1.676 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.158 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 1.040 us | }
7) 1.292 us | }
7) 1.510 us | }
7) 5.320 us | }
7) 5.788 us | }
7) | btf_struct_check_meta() {
7) 0.253 us | btf_name_valid_identifier.isra.12();
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.107 us | __virt_addr_valid();
7) 0.427 us | __check_heap_object();
7) 1.042 us | }
7) 1.597 us | }
7) 1.986 us | }
7) | btf_struct_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.104 us | __virt_addr_valid();
7) 0.111 us | __check_heap_object();
7) 0.761 us | }
7) 1.306 us | }
7) 1.503 us | }
7) 1.721 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.102 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.932 us | }
7) 1.177 us | }
7) 1.417 us | }
7) 5.809 us | }
7) 0.109 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.172 us | __check_heap_object();
7) 0.948 us | }
7) 1.411 us | }
7) 1.609 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.189 us | check_stack_object();
7) 0.104 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.919 us | }
7) 1.170 us | }
7) 1.401 us | }
7) 3.498 us | }
7) 0.125 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.107 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.766 us | }
7) 1.341 us | }
7) 1.600 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.147 us | check_stack_object();
7) 0.105 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.864 us | }
7) 1.261 us | }
7) 1.478 us | }
7) 3.695 us | }
7) + 14.434 us | }
7) | btf_struct_check_meta() {
7) 0.129 us | btf_name_valid_identifier.isra.12();
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.104 us | __virt_addr_valid();
7) 0.239 us | __check_heap_object();
7) 0.958 us | }
7) 1.426 us | }
7) 1.689 us | }
7) | btf_struct_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.101 us | check_stack_object();
7) 0.121 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 1.070 us | }
7) 1.473 us | }
7) 1.879 us | }
7) 2.103 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.107 us | __check_heap_object();
7) 0.908 us | }
7) 1.159 us | }
7) 1.385 us | }
7) 5.993 us | }
7) 0.138 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.107 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.770 us | }
7) 1.337 us | }
7) 1.668 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.131 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.111 us | __check_heap_object();
7) 0.839 us | }
7) 1.179 us | }
7) 1.444 us | }
7) 3.474 us | }
7) + 10.523 us | }
7) | btf_ref_type_check_meta() {
7) 0.113 us | btf_name_valid_identifier.isra.12();
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.106 us | check_stack_object();
7) 0.125 us | __virt_addr_valid();
7) 0.132 us | __check_heap_object();
7) 0.818 us | }
7) 1.293 us | }
7) 1.621 us | }
7) | btf_ref_type_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.154 us | __check_heap_object();
7) 0.938 us | }
7) 1.256 us | }
7) 1.459 us | }
7) 1.745 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.806 us | }
7) 1.193 us | }
7) 1.391 us | }
7) 5.251 us | }
7) 5.892 us | }
7) | btf_int_check_meta() {
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.107 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.111 us | __check_heap_object();
7) 0.913 us | }
7) 1.579 us | }
7) 1.896 us | }
7) | btf_int_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.247 us | check_stack_object();
7) 0.115 us | __virt_addr_valid();
7) 0.373 us | __check_heap_object();
7) 1.185 us | }
7) 1.847 us | }
7) 2.228 us | }
7) 2.577 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.123 us | __virt_addr_valid();
7) 0.112 us | __check_heap_object();
7) 0.797 us | }
7) 1.098 us | }
7) 1.297 us | }
7) 6.422 us | }
7) 6.683 us | }
7) | btf_struct_check_meta() {
7) 0.144 us | btf_name_valid_identifier.isra.12();
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.182 us | __virt_addr_valid();
7) 0.122 us | __check_heap_object();
7) 0.910 us | }
7) 1.417 us | }
7) 1.619 us | }
7) | btf_struct_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.134 us | check_stack_object();
7) 0.262 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 1.061 us | }
7) 1.414 us | }
7) 1.615 us | }
7) 1.921 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.234 us | check_stack_object();
7) 0.104 us | __virt_addr_valid();
7) 0.221 us | __check_heap_object();
7) 1.134 us | }
7) 1.389 us | }
7) 1.607 us | }
7) 5.555 us | }
7) 0.108 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.104 us | __virt_addr_valid();
7) 0.107 us | __check_heap_object();
7) 0.920 us | }
7) 1.487 us | }
7) 1.686 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.276 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 0.943 us | }
7) 1.196 us | }
7) 1.398 us | }
7) 3.526 us | }
7) 0.113 us | btf_name_valid_identifier.isra.12();
7) | btf_verifier_log_member() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.723 us | }
7) 1.174 us | }
7) 1.453 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.332 us | __check_heap_object();
7) 1.019 us | }
7) 1.479 us | }
7) 1.750 us | }
7) 3.808 us | }
7) + 13.995 us | }
7) | btf_ref_type_check_meta() {
7) 0.125 us | btf_name_valid_identifier.isra.12();
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.136 us | check_stack_object();
7) 0.102 us | __virt_addr_valid();
7) 0.107 us | __check_heap_object();
7) 0.861 us | }
7) 1.449 us | }
7) 1.673 us | }
7) | btf_ref_type_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.101 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 0.728 us | }
7) 1.084 us | }
7) 1.436 us | }
7) 1.623 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.100 us | check_stack_object();
7) 0.101 us | __virt_addr_valid();
7) 0.135 us | __check_heap_object();
7) 0.870 us | }
7) 1.118 us | }
7) 1.397 us | }
7) 5.199 us | }
7) 5.621 us | }
7) | btf_ref_type_check_meta() {
7) 0.366 us | btf_name_valid_identifier.isra.12();
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.106 us | check_stack_object();
7) 0.263 us | __virt_addr_valid();
7) 0.112 us | __check_heap_object();
7) 1.007 us | }
7) 1.518 us | }
7) 1.719 us | }
7) | btf_ref_type_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.294 us | __virt_addr_valid();
7) 0.110 us | __check_heap_object();
7) 0.959 us | }
7) 1.268 us | }
7) 1.470 us | }
7) 1.755 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.112 us | __check_heap_object();
7) 0.882 us | }
7) 1.157 us | }
7) 1.360 us | }
7) 5.297 us | }
7) 5.996 us | }
7) | btf_array_check_meta() {
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.234 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.850 us | }
7) 1.322 us | }
7) 1.517 us | }
7) | btf_array_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.103 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.938 us | }
7) 1.438 us | }
7) 1.636 us | }
7) 1.901 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.202 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.137 us | __check_heap_object();
7) 1.067 us | }
7) 1.323 us | }
7) 1.543 us | }
7) 5.507 us | }
7) 5.894 us | }
7) | btf_int_check_meta() {
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.150 us | __virt_addr_valid();
7) 0.111 us | __check_heap_object();
7) 1.007 us | }
7) 1.675 us | }
7) 1.905 us | }
7) | btf_int_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.104 us | check_stack_object();
7) 0.104 us | __virt_addr_valid();
7) 0.322 us | __check_heap_object();
7) 0.981 us | }
7) 1.503 us | }
7) 1.705 us | }
7) 1.907 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.104 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.722 us | }
7) 1.257 us | }
7) 1.638 us | }
7) 5.861 us | }
7) 6.055 us | }
7) | btf_int_check_meta() {
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.105 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.145 us | __check_heap_object();
7) 0.866 us | }
7) 1.356 us | }
7) 1.623 us | }
7) | btf_int_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.102 us | check_stack_object();
7) 0.101 us | __virt_addr_valid();
7) 0.244 us | __check_heap_object();
7) 0.909 us | }
7) 1.438 us | }
7) 1.675 us | }
7) 1.937 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.240 us | check_stack_object();
7) 0.129 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 1.029 us | }
7) 1.326 us | }
7) 1.671 us | }
7) 5.772 us | }
7) 5.981 us | }
7) | kvmalloc_node() {
7) | __kmalloc_node() {
7) 0.103 us | kmalloc_slab();
7) | _cond_resched() {
7) 0.265 us | rcu_all_qs();
7) 0.460 us | }
7) 0.099 us | should_failslab();
7) 0.102 us | memcg_kmem_put_cache();
7) 1.276 us | }
7) 1.490 us | }
7) | kvfree() {
7) 0.119 us | kfree();
7) 0.304 us | }
7) | btf_ref_type_check_meta() {
7) | __btf_verifier_log_type() {
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.103 us | check_stack_object();
7) 0.100 us | __virt_addr_valid();
7) 0.109 us | __check_heap_object();
7) 0.746 us | }
7) 1.210 us | }
7) 1.407 us | }
7) | btf_ref_type_log() {
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.097 us | check_stack_object();
7) 0.101 us | __virt_addr_valid();
7) 0.107 us | __check_heap_object();
7) 0.707 us | }
7) 1.013 us | }
7) 1.210 us | }
7) 1.402 us | }
7) | __btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.101 us | check_stack_object();
7) 0.115 us | __virt_addr_valid();
7) 0.108 us | __check_heap_object();
7) 0.737 us | }
7) 0.990 us | }
7) 1.188 us | }
7) 4.405 us | }
7) 4.608 us | }
7) | btf_verifier_log() {
7) | bpf_verifier_vlog() {
7) | __check_object_size() {
7) 0.107 us | check_stack_object();
7) 0.106 us | __virt_addr_valid();
7) 0.112 us | __check_heap_object();
7) 0.744 us | }
7) 1.545 us | }
7) 1.745 us | }
7) | kvfree() {
7) 0.106 us | kfree();
7) 0.296 us | }
7) 0.120 us | kfree();
7) | btf_free() {
7) | kvfree() {
7) 0.115 us | kfree();
7) 0.298 us | }
7) | kvfree() {
7) 0.103 us | kfree();
7) 0.291 us | }
7) | kvfree() {
7) 0.097 us | kfree();
7) 0.281 us | }
7) | kvfree() {
7) 0.113 us | kfree();
7) 0.300 us | }
7) 0.103 us | kfree();
7) 1.870 us | }
7) ! 194.466 us | }
7) ! 195.945 us | }
Looking at 'perf trace -vv' the only messages that seem to have come
from libbpf are:
INFO: nothing to config for map syscalls
INFO: nothing to config for map pids_filtered
So, what am I missing?
- Arnaldo
On Fri, Jan 25, 2019 at 11:20:57AM +0100, Arnaldo Carvalho de Melo wrote:
> # bpftool version
> bpftool v5.0.0-rc3
> #
>
> # bpftool prog | tail -6
> 309: tracepoint name sys_enter tag 819967866022f1e1 gpl
> loaded_at 2019-01-25T11:05:41+0100 uid 0
> xlated 528B jited 381B memlock 4096B map_ids 200,199,198
> 310: tracepoint name sys_exit tag c1bd85c092d6e4aa gpl
> loaded_at 2019-01-25T11:05:41+0100 uid 0
> xlated 256B jited 191B memlock 4096B map_ids 200,199
> #
>
> And the maps:
>
> # bpftool map | tail -6
> 198: perf_event_array name __augmented_sys flags 0x0
> key 4B value 4B max_entries 8 memlock 4096B
> 199: array name syscalls flags 0x0
> key 4B value 1B max_entries 512 memlock 8192B
> 200: hash name pids_filtered flags 0x0
> key 4B value 1B max_entries 64 memlock 8192B
> #
>
> So, dumping the entries for those entries:
>
> [root@quaco ~]# egrep sleep /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c
> [35] = "nanosleep",
> [230] = "clock_nanosleep",
> [root@quaco ~]#
>
> Looking at just the open and nanosleep:
>
> # bpftool map dump id 199 | grep "value: 01"
> key: 23 00 00 00 value: 01
> key: e6 00 00 00 value: 01
> #
>
> # bpftool map lookup id 199 key 35
> Error: key expected 4 bytes got 1
> #
>
> # bpftool map lookup id 199 key 35 00 00 00
> key: 23 00 00 00 value: 01
> # bpftool map lookup id 199 key 230 00 00 00
> key: e6 00 00 00 value: 01
> #
>
> I thought it was that --pretty option, so I tried:
>
> # bpftool map --pretty lookup id 199 key 230 00 00 00
> {
> "key": ["0xe6","0x00","0x00","0x00"
> ],
> "value": ["0x01"
> ]
> }
> #
libbpf pr_warning on failing to load BTF
or failing to create a MAP after BTF has been loaded and
____btf_map_xxx can be found.
Did you see any of them? It seems it can load the BTF
from your email.
It may be useful to set the libbpf's __pr_debug which
should be NULL by default iirc.